Ventilation system for cattle barns and the like



R. G. FERRIS Oct. 13, 1936.

VENTILATION SYSTEM FOR CATTLE BARNS AND THE LIKE 2 Sheets-Sheet 1 Filed April 1, 1955 R. G. FERRIS Oct. 13, 1936.

VENTILATION SYSTEM FOR CATTLE BARNS AND THE LIKE Filed April 1, 1935 2 Sheets-Sheet 2 L W r Patented Oct. 13, 1936 2,057,627

UNITED STATES PATENT OFFICE VENTILATION SYSTEM FOR CATTLE BARNS AND THE LIKE Robert G. Ferris, Harvard, Ill., assignor to Starlin e Inc., Harvard, 111., a corporation of Illinois Application April 1, 1935, Serial No. 14,110

' Claims. (01. 98-33) An object of this invention is to provide an the barn facing the side walls, and are provided improved system of ventilation for cattle barns with a central runway H3, at each side of which and the like. is a gutter l1 and beyond this a stall floor I8,

Another object is to provide a ventilation sysand a manger 19, preferably separated there- 5 tern having means for preventing condensation from by a curb 20. An outer runway or aisle 5 of moisture on the walls of the outlet passages. 2| is preferably provided between the manger These and other objects, as will hereinafter and the side wall of the building. The manger appear, are accomplished by this invention which is slightly elevated and provided with an outer is fully described in the following Specification sloping wall 22, and beneath this manger is conand shown in the accompanying drawings, in structed an air passage 23 which preferably runs 10 which the length of each tier of cattle stalls, as shown Figure 1 is a side elevation of a one story catin Figs. 2 and 4. Each of these passages contle barn embodying one form of the invention; nects through a duct 26, 25 with a suitable means Fig. 2 is a top plan View of the same with a for withdrawing air, such as a vertical riser 26,

portion of the roof removed to show the arwhich connects with apower driven fan 21 which 15 rangement of cattle stalls, and the air ducts draws the air through the riser and forces it forming part of the system as viewed on the out through an opening in the side wall, where broken line 2-2 of Fig.1; it'issues beneath a hood 28. Thus a syphon Fig. 3 is aside elevation of a cattle barn with head might be used, if desired, in place of the hay loft embodyingamodified form of the invenfan. Air is admitted to the air passage 23, 20 tion; through a series of openings 29 (Figs. 4 and 5) Fig. 4 is a top plan View of the same emwhich are shielded by protecting louvers 30. bodying part of the roof and hay loft broken These freely admit air but prevent feed and away as viewed on the broken line 4-4 of Fig. 3; debris of all kinds from getting into the air Fig. 5 is a partial enlarged section on the line passage. 25 5 of Figs. 2 and 4 showing a cross section of the It will be understood from the foregoing that side wall of the barn together with the stall the cold outside air is thus intro-duced into the floor, manger and air passage beneath the manbarn at a number of points along a median line ger; and between the rows of cattle stalls, and that this 0 Fig. 6 is an enlarged side elevation of a ventiair then flows through the stalls, over the manlator including a means to prevent the upflow of ger and passes through the openings 29 into the air therethrough. air passage 23, and thence through the ducts 24,

The embodiment shown in Figs. 1 and 2 com- 25 and the riser 26 to the outside of the buildprises a cattle barn having side walls [0, end ing. By placing the openings 29 and the paswalls I I, and a roof l2 in which is located one sages 23 well inside the barn, they are at barn 5 or more ventilators I3. These ventilators are temperature which is well above that of the side shown in detail in Fig. 6 and will later be dewalls of the barn, so that condensation of moisscribed. In general, the purpose of these ventiture from the outgoing air does not take place lators is just the reverse of that of ventilators upon the walls of the air passage. At the same which are commonly used in this position; that time the air is withdrawn from points closely 40 is, these ventilators are intended to provide adjacent the noses of the cattle, so that the air meansfor the introduction of air into the barn exhaled by them is very rapidly withdrawn, at these points instead of for the withdrawal of thereby lessening the chance of spread of cerair. For this reason a spreader plate M is protain contagious diseases through the herd of vided within the barn and placed a short discattle occupying the barn. 45

tance below the opening of each ventilator so as It is desired that incoming air shall be introto difiuse air coming into the building at this duced through the ventilators l3, as shown in point, so that it will not descend in a solid Fig. 6, but that warm air from the barn shall I stream but instead will be broken up and difnot pass up through this ventilator during the fused over a relatively large area. By employcold winter months. To prevent this I have 50 ing a plurality of such ventilators the fresh air provided the ventilator l3 with check valves 3i is introduced along a line drawn longitudinally which are hingedly mounted on pivots 32, and through the middle of the building. provided with counterweights 33 so that when The cattle stalls I5 (Fig. 2) are preferably properly balanced they move very readily, the

arranged in two parallel rows longitudinally of counterweights being so adjusted as to tend to 55 maintain these valves in a closed position, such as shown in full lines in Fig. 6. Any withdrawal of air from the barn, however, by means of the ventilating fan or other air exhausting means will cause these valves to open to admit fresh air. It will also be noted that the fresh air enters near the top of the room in which the cattle are housed and leaves from a plurality of points near the floor of the room.

In Figs. 3 and 4 is shown a modified form. of the invention as applied to a barn having a hay loft. use a ventilator such as that shown in Fig. 6 because this ventilator would have to be connected through a large vertical pipe with the cattle room below, and such a series of pipes might interfere very greatly with hay carriers and the like which are commonly used-for conv Veying hay into the hay loft. In order to utilize this invention in a barn having such a hay loft,

' I have provided a plurality of horizontal air 'negative pressure.

ducts 3A which are preferably located between joists forming the floor of the hay loft. These airpipes pass through the building from side to side so as to receive air from both sides, and are preferably provided with suitable hooded air inlets 35 so that air can pass freely through the ducts from one side to the other, the direction of motion of the air depending upon the direction and velocity of the wind. Each pipe is provided near its center with an orifice 34 through which air is supplied to the barn substantially on a median line between the lines of stalls in much the same way as that previously described for the roof ventilators. Difiusion plates 36 are likewise placed beneath the orifice 34. T r a T Thus air is introduced into the center of the barn from a point of substantially neutral air pressure, regardless of the direction or velocity of the wind, because the air ducts connect both,

sides of the barn and hence one end is often under a positive pressure, while the other is at a Any tendency for air to flow from one side to the other of the barn is neutralized by the hoods at the ends of these ducts.

embodiments of my invention, it is to be understood that it is capable of many modifications.

Changes, therefore, in the construction and arrangement may be made which do not depart from the spirit and scope of the invention as disclosed in the appended claims,

In this case it may 'not'be convenient to' above the gutter.

2. A barn having a floor on which are located two rows 'of' animal stalls having mangers and facing the side walls, means for introducing air to the barn adjacent the center thereof and between the rows of stalls, and means for withdrawing air from'the barn from points laterally spaced from the side walls of the barn and adjacent the stall "mangers to prevent condensation of moisture on said means and for delivering the air outside the barn. 1

3; A barn havinga floor on' which are located two rows of animal stalls facing the sidewalls, 7

means for introducing air to the barn at the center and between the rows of stalls marigers at the outside of each row of stalls, a runway between the mangers and the adjacent side wall of the barn, an air passage extending longitudinally beneath a row of the mangers, a plurality of openings "into the air passage, 7 and means for withdrawing air from the barn through the openings and passage andfor delivering'it outside the barn. 4. A barn" having a floor on which is located a row of animal stalls with a row of mangers along one side and gutters along 'theotherian for delivering it outside the buildinggmeans for delivering air inside the building to points'adjacent the gutter, and means to prevent a counterflow of air through the air'deliverymeans.

5. A barn having-a floor on which are located two rows of animal stalls each having a row of mangers along one side, an air-passage extending longitudinally of the barn in: laterally spaced relation to the side walls of the barn and adjacent each row of mangers to prevent condensation of moisture in said passage, 'a'plurality of openings into each air passage, -means:1

for exhausting air from the air passages and for delivering it outside the. barn, and means for introducing the air into the barn adjacen the center thereof.

I ROBERT G. FERRIS. 

